Hi, everyone.
I had assembeled fixed wing Z-84 and confidently made some flights in manual mode.
The next step I can’t overcome is auto takeoff in catapult mode.
I can’t understand what does not allow to pitch up after a launch was detected.
The vechicle takes off from catapult and then tends down. Help me, pls see my log.

@Rocket you say you’ve flown in Manual mode. Have you tried flying in Stablized mode yet? That is typically the next step. If the aircraft flies well in stablized mode, then you are ready to try some autonomous modes. Maybe you should try taking off in stabilized mode, then switching to Mission mode once in the air. If that is all working then you are ready for auto takeoffs. Did the flight log you posted above use a Takeoff waypoing?